Recent content by Blade

Jeez, took me a while, but finally realized that these questions were actually connected to some previous questions *hits self on head* So, I'm guessing this is what they stemmed out of: 1. Which I solved the rxn (47.3 mL of 2.00M nitric acid, 47.1 mL of 2.00M sodium hydroxide) change in...

Well up to this point, the problems have been calorimeter problems, however, at the end of the assignment has different "looking" type of problems. i.e. "What would the change in enthalpy, in kJ/mol, be for the reaction of 50.0 mL of 1.00 M HNO(3) with 50.0 mL of 1.00 M KOH?" These don't...

How would I go about simplifying something like: (n+3)!/(n+1)! ?

Ah, sorry about the first one. f(t)=t^(3/2)log(of 2)Sqrt(t+1) I need to derive that.

Need a kickstart with this one: f(t)=t^(3/2)log(of 2)Sqrt(t+1) Integral of (3-x)7^[(3-x)^2] dx 7^[(3-x)2] = e^[(3-x)2ln 7] u=(3-x)^2 du/dx = -2(3-x) (3-x)dx = -1/2 du not even sure what so far is right..

A particle moves along the x-axis in such a way that its acceleration at time t for t>= 0 is given by a(t)=4cos(2t). At time t=0, the velocity of the particle is v(0)=1 and its position is x(0)=0. a. Write an equation for the velocity of v(t) of the particle. b. Write an equation for the...

INT x^(1/3) / x^(1/3) -1 dx u = x^(1/3) x = u^3 dx = 3u^2du INT (u/u-1)3u^2du = 3 INT u^3/(u-1) du INT [u^2 + u + 1/(u-1)]du Then just integrate each part? ----------- Find the area of the region bounded. y=2x - tan(0.3x), x-1, x=4, y=0 Need some guidance where to start here...

I'm stumped on some of the thermodynamic problems involving density. Heat a 1.0kg bar of lead at atmospheric pressure from 25C to 60C and find the work done by the lead. (density of lead = 1.13*10^4 kg/m^3) The only equations I was given was the Ideal Gas Law... which lead is not a gas...

A car traveling at 45 miles per hour is brought to a stop, at constant deceleration, 132 feet from where the brakes are applied. a. How far has the car moved when its speed has been reduced to 30 miles per hour? b. How far has the car moved when its speed has been reduced to 15 miles per...

Example: "A 2.1x10^3kg car starts from rest at the top of a 5.0m long driveway that is sloped at 20 degrees with the horizontal. If an average friction force of 4.0x10^3 N impedes the motion, find the speed of the car at the bottom of the driveway." I know there's no final kinetic force...

I'm having problems with solving these nonconservative forces problems. The teach keeps pointing to Wnc=(KE+PE)f - (KE+PE)i As we use this when there is friction present, I'm totally confused on where the frictional or opposing force is involved when solving. I've basically been ignoring the...

http://www.delteria.net/images/calctest.gif Conditions: a. f'(x)=0 b. f"(x)= 0 c. f'(x) = DNE d. f = relative max e. f = point of inflection What I have so far (they can repeat I believe): a. X0, X4 b. X3 c. X1 d. X2 e. X2 I'm sure something is wrong... Also, what would a...